CN109353776B - Multi-span door type movable tail car - Google Patents
Multi-span door type movable tail car Download PDFInfo
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- CN109353776B CN109353776B CN201811535792.7A CN201811535792A CN109353776B CN 109353776 B CN109353776 B CN 109353776B CN 201811535792 A CN201811535792 A CN 201811535792A CN 109353776 B CN109353776 B CN 109353776B
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- door
- trolley
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G35/00—Mechanical conveyors not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a multi-span door type mobile tail car, which comprises: the main beam mechanism, the trolley set mechanism, the door-type supporting leg mechanism and the connecting beam mechanism; the girder mechanism comprises a plurality of girder segments, the trolley group mechanism comprises a plurality of trolley groups, the door-type supporting leg mechanism comprises a plurality of door-type supporting legs, and the connecting girder mechanism comprises a plurality of connecting girders; the plurality of door-type landing legs are regularly arranged on a horizontal working plane, connecting beams are arranged between the adjacent door-type landing legs, a group of trolley sets is arranged at the bottom of each door-type landing leg, and the trolley sets are symmetrically arranged on the left side and the right side of each door-type landing leg. The multi-span door type movable tail car disclosed by the invention has the advantages that the main beam adopts a sectional lap joint mode, the rear section is directly lapped on the front section beam, the middle lap joint beam is designed in a modular manner according to the actual length requirement, the field installation is simple, the multi-span door type movable tail car is mutually lapped, the size and the weight of large parts can be effectively reduced by adopting the structural mode, and the transportation and the maintenance are very convenient.
Description
Technical Field
The invention relates to the technical field of movable trailers of bulk material continuous stacking equipment, in particular to a door type movable trailer of ultra-large bulk material continuous stacking equipment.
Background
At present, the international market has a lot of demands on ultra-large bulk material continuous stacking equipment, but the ultra-large bulk material continuous stacking equipment is greatly improved in the aspects of dead weight, span (track gauge), external dimension and the like, and the requirements on the mechanical maintenance and the maintenance functions of the equipment are increasingly popularized, so that the existing tail car form is difficult to meet the requirements, and the development of the ultra-large bulk material continuous stacking equipment is restricted.
Disclosure of Invention
According to the technical problem that the existing tail car cannot meet the working requirements of ultra-large bulk material continuous stacking equipment, the multi-span door type movable tail car is provided. The main beam is mainly utilized to adopt a sectional type lap joint mode, the rear section is directly lapped on the front section beam, the middle lap joint beam is designed in a modular mode according to the actual length requirement, the field installation is simple, the main beam is lapped with each other, the size and the weight of a large part are effectively reduced, and the transportation and the maintenance are very convenient.
The invention adopts the following technical means:
a multi-span gate mobile tail car comprising: the main beam mechanism, the trolley set mechanism, the door-type supporting leg mechanism and the connecting beam mechanism; the girder mechanism comprises a plurality of girder segments, the trolley group mechanism comprises a plurality of trolley groups, the door-type supporting leg mechanism comprises a plurality of door-type supporting legs, and the connecting girder mechanism comprises a plurality of connecting girders; the plurality of door-type supporting legs are regularly arranged on a horizontal working plane, connecting beams are arranged between the adjacent door-type supporting legs, a group of trolley sets is arranged at the bottom of each door-type supporting leg, and the trolley sets are symmetrically arranged at the left side and the right side of each door-type supporting leg; the top parts of the first two door type supporting legs are provided with first girder sections, the top parts of the other door type supporting legs are sequentially provided with second girder sections, the first girder sections and the second girder sections are connected through spherical devices, and the adjacent second girder sections are connected through spherical devices; the front-most door-type supporting leg is provided with a main machine part through a joint bearing.
Further, the door-type supporting leg at the forefront end is hinged with the trolley set through a horizontal pin shaft, and a sliding bearing is arranged in the horizontal pin shaft; the door-type supporting legs at the middle position are connected with the trolley group through a horizontal shaft and a vertical shaft, namely, a cross shaft is connected; the sliding bearing is arranged in the horizontal shaft, and the thrust bearing and the friction disc are arranged in the vertical shaft; the door-type supporting leg at the rearmost position is rigidly connected with the trolley set through bolts.
Further, in the connection of the spherical device, the spherical device is arranged at the tail end of the main beam section at the front end, an adjusting pad is arranged in the spherical device, and the front end of the main beam section at the rear end is provided with a transverse stop and a longitudinal stop for limiting displacement; a protective zipper for preventing accidental falling is arranged between the front end of the main beam section at the front end and the front end of the main beam section at the rear end.
Further, the number of the door-type supporting legs and the number of the trolley groups are n, the number of the main beam sections and the number of the connecting beams are n-1, and n is more than or equal to 4.
Further, the host machine part is provided with a host machine connecting lug plate, the door-type supporting leg at the forefront end is provided with a bridge beam I connecting lug plate, and the host machine connecting lug plate and the bridge beam I connecting lug plate are fixedly connected through a joint bearing.
Further, a traffic and maintenance vehicle channel is arranged below the door-type supporting legs.
Compared with the prior art, the invention has the following advantages:
1. the girder adopts sectional type overlap joint mode, and the back end directly overlaps on the anterior segment roof beam, and middle overlap beam carries out modular design according to actual length demand, and on-the-spot installation is simple, and overlap joint each other can, and this kind of structural style also can effectively reduce large part size and weight, and transportation and maintenance are very convenient.
2. Different connection modes are adopted between the door legs with different spans and the trolley groups under the door legs, so that automatic deviation correction can be ensured when the trolley runs, and the operation is stable.
3. The structure and the mechanism form of (1) + (2) can reduce redundant constraint in the equipment, eliminate statically indeterminate structures and reduce fatigue damage of the equipment. The method can also be applied to the rails with large settlement deviation, and the laying cost of the foundation is reduced.
4. The door type supporting leg structure is adopted, so that the tail car is guaranteed to have an accessible passage space, traffic and maintenance vehicles can freely pass through the inside of the tail car, and guarantees are provided for mechanized maintenance, mechanized ground filling with hydraulic oil, lubricating grease and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic view of the main view of a multi-span overlap gate type mobile tail of the present invention.
FIG. 2 is a first cross-side schematic view (section A-A of FIG. 1) of the present invention.
FIG. 3 is a second cross-side schematic view (section B-B of FIG. 1) of the present invention.
FIG. 4 is a schematic view of the present invention from a mid-span side view (section C-C of FIG. 1).
FIG. 5 is a schematic diagram of a tail cross-over side view of the present invention (section D-D of FIG. 1).
Fig. 6 is a view showing the lap joint connection of the main girder of the present invention (detail a of fig. 1).
Fig. 7-1 is a view showing the joint bearing connection between the main machine and the tail car (detail b of fig. 1) according to the present invention.
Fig. 7-2 is an E-E cross-sectional view of fig. 7-1.
Fig. 8 is a diagram showing the connection between the intermediate leg and the bogie set according to the present invention (detail c of fig. 1).
In the figure: 1. girder segments i, 2, girder segments ii, 3, girder segments (n-1), 4, portal legs n,5, portal legs iii, 6, portal legs ii, 7, portal legs i, 8, trolley groups i, 9, trolley groups ii, 10, trolley groups iii, 11, trolley groups n,12, tie beams (n-1), 13, tie beams ii, 14, tie beams i, 15, host portion, 16, traffic and maintenance vehicle channels, 17, knuckle bearings, 18, horizontal pins, 19, horizontal shafts, 20, vertical shafts, 21, thrust bearings, 22, friction discs, 23, bolts, 24, host connection lugs, 25, bridge i connection lugs, 26, slide bearings,
101. the main beam section nx (x is more than or equal to 1 and less than or equal to n-2), 102, a transverse stop, 103, a main beam section n (x+1) (x is more than or equal to 2 and less than or equal to n-2), 104, a protective zipper, 105, a longitudinal stop, 106, an adjusting pad, 107 and a spherical device;
201. door-type landing leg nx (x is more than or equal to 2 and less than or equal to n-1), 202 and trolley group nx (x is more than or equal to 2 and less than or equal to n-1).
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
As shown, the present invention provides a multi-span gate-type mobile tail car, comprising: the main beam mechanism, the trolley set mechanism, the door-type supporting leg mechanism and the connecting beam mechanism; the girder mechanism comprises a plurality of girder segments, the trolley group mechanism comprises a plurality of trolley groups, the door-type supporting leg mechanism comprises a plurality of door-type supporting legs, and the connecting girder mechanism comprises a plurality of connecting girders; the plurality of door-type supporting legs are regularly arranged on a horizontal working plane, connecting beams are arranged between the adjacent door-type supporting legs, a group of trolley sets is arranged at the bottom of each door-type supporting leg, and the trolley sets are symmetrically arranged at the left side and the right side of each door-type supporting leg; below the door legs are traffic and maintenance vehicle channels 16.
The top parts of the first two door type supporting legs are provided with first girder sections, the top parts of the other door type supporting legs are sequentially provided with second girder sections, the first girder sections and the second girder sections are connected through spherical devices, and the adjacent second girder sections are connected through spherical devices; in the connection of the spherical device, the spherical device 107 is arranged at the tail end of the main beam section at the front end, an adjusting pad 106 is arranged in the spherical device, and the front end of the main beam section at the rear end is provided with a transverse stop 102 and a longitudinal stop 105 for limiting displacement; a protective zipper 104 for preventing accidental falling is arranged between the front end of the main beam section at the front end and the front end of the main beam section at the rear end, as shown in FIG. 6, a main beam section nx (x is not less than 1 and not more than n-2) 101 and a main beam section n (x+1) (x is not less than 2 and not more than n-2) 103.
The foremost door leg is fitted with a main body portion 15 via a knuckle bearing 17. The main machine part 15 is provided with a main machine connecting lug plate 24, the door-type supporting leg at the forefront end is provided with a bridge I connecting lug plate 25, and the main machine connecting lug plate 24 and the bridge I connecting lug plate 25 are fixedly connected through a joint bearing 17. As shown in fig. 7-1 and 7-2, the main machine and the tail car are connected by adopting a single-point knuckle bearing 17, so that a hyperstatic structure is avoided between the main machine and the tail car.
The door-type landing leg at the forefront end is hinged with the trolley group through a horizontal pin shaft 18, and a sliding bearing is arranged in the horizontal pin shaft 18; the door-type supporting legs in the middle position are connected with the trolley group through a horizontal shaft 19 and a vertical shaft 20, namely, a cross shaft is connected; the sliding bearing is arranged in the horizontal shaft 19, and the thrust bearing and the friction disc are arranged in the vertical shaft 20; the door-type supporting leg at the rearmost position is rigidly connected with the trolley set through bolts 23.
The bridge I is connected with the main machine through the joint bearing 17 in a single point manner, so that the traction effect of the main machine on the tail car can be guaranteed, and the independent operation between the main machine and the tail car can be guaranteed; the horizontal shaft between the supporting legs and the internal components of the trolley set can release the additional load of the same-side rail; the vertical shaft between the supporting leg and the trolley group can release the additional load of the tracks on the two sides; the legs connected by the horizontal shaft and the vertical shaft are flexible legs, and the bolt connection between the last group of legs and the trolley group is rigid legs. The sliding bearing and the thrust bearing ensure stable movement and reduce noise.
The number of the door type supporting legs and the trolley groups is n, and the corresponding door type supporting legs and trolley groups form a group of bridge; the number of the main girder sections and the connecting girders is n-1, and n is more than or equal to 4.
Specifically, the girder mechanism comprises (n-1) girder segments, which are respectively composed of a girder segment I1, a girder segment II 2 and a girder segment III … girder segment (n-1). As shown in fig. 1. The number of main beam sections is determined based on the actual length and structural rigidity of the tail car. The girder sections are mutually lapped together, and the lapping surface is spherical, so that the girder can adapt to different running conditions, can follow up with equipment or foundation rails up and down, left and right, and effectively releases all constraint stress.
The trolley group mechanism comprises n trolley groups, wherein the n trolley groups are respectively formed by a trolley group I8, a trolley group II 9 … trolley group (n-1) and a trolley group n11, and the trolley groups are symmetrically arranged left and right. The number of the trolley groups is determined according to the actual length of the tail car, and the number of wheels of each trolley group is determined according to the basic wheel pressure and the structural rigidity.
The door type landing leg mechanism comprises n door type landing legs, namely door type landing legs I7, door type landing legs II 6 …, door type landing legs (n-1) and door type landing legs n 4. The number of the door-type supporting legs is determined according to the actual length and the structural rigidity of the tail car. The trolley group and the door type supporting legs are connected together to form a bridge, and the number of the bridge is matched with that of the door legs, namely a bridge I, a bridge II … bridge (n-1) and a bridge n. The number n of the bridge is more than or equal to 4.
The door-type supporting leg n inside the bridge n is connected with the trolley group n through bolts. The wheels inside all trolley groups are provided with double-row aligning roller bearings, and all trolley frames are connected and provided with horizontal pin shafts perpendicular to the running direction. The bridge I is connected with the host computer through a joint bearing at a single point.
The door-type supporting leg I7 inside the bridge I is hinged with the trolley group I8 through a horizontal pin 19, and a sliding bearing 26 is arranged inside the horizontal pin 18.
As shown in fig. 8, the door-type leg (ii- (n-1) section) inside the bridge (ii- (n-1) section) and the trolley group (ii- (n-1) section) are connected by a horizontal shaft 19 and a vertical shaft 20 in combination, a sliding bearing 26 is mounted inside the horizontal shaft 19, and a thrust bearing 21 and a friction plate 22 are mounted inside the vertical shaft 20.
In FIG. 8, gate leg nx (2.ltoreq.x.ltoreq.n-1) 201 and trolley group nx (2.ltoreq.x.ltoreq.n-1) 202.
The support leg of the middle span and the trolley group are connected by adopting a combination of a horizontal shaft 19 and a vertical shaft 20. The function is that if the track deviates or the track deviates, the trolley set can rotate by itself, and the structure above the trolley set is still motionless. The advantage of this form of construction is: the running can automatically correct the deviation, various equipment channels on the machine, maintenance platforms and the like are not changed, and the connection form is shown in figure 8.
The connecting beam mechanism comprises (n-1) connecting beams, namely connecting beam I14 and connecting beam II 13 … connecting beam (n-1) 12. The number n of the connecting beams is more than or equal to 4. The function of the connecting beam is to connect the spans of the tail car together by combining the main beam sections.
The novel tail car structure and the novel connection form are suitable for ultra-large multi-span overlap gate type movable tail cars, and independent gate type trailers with an indefinite number are modularly designed according to the requirements of the tail car length change of different specifications, and the trailers are mutually overlapped to form a complete tail car. It is also suitable for running on tracks with large deviations and insufficient precision.
According to the multi-span door type movable tail car, the trolley set and the door type supporting legs in the combination mode of the vertical shafts and the parallel shafts are adopted, and according to the requirements of the length change of the tail car of different specifications, independent door type trailers with different numbers are designed in a modularized mode, and the trailers are mutually overlapped to form a complete tail car which can run on a track with certain deviation, walk is automatically corrected, and vehicles can be transported and maintained in the inside. Effectively solves the problems in the prior art, and completely meets the matching requirements of the ultra-large mobile stacking equipment to be developed in the future.
The invention discloses a multi-span gate type movable tail car, which is developed to push bulk continuous stacking equipment to develop towards an oversized direction. Innovative structure and mechanism design reduce the connection form of overconstraint, eliminate statically indeterminate structure, reduce fatigue failure load, improve equipment life-span, guarantee the high-efficient reliable operation of equipment. The equipment is suitable for a track with certain deviation, and walking can automatically correct the deviation. The device can be mechanically maintained at any position.
The multi-span door type mobile tail car has the following advantages:
1. the invention has oversized conveying capacity and can meet the matching requirement of oversized stacking equipment to be developed.
2. The invention has the novel running system design, and the running of the cart can be automatically corrected. The automatic deviation correcting walking mechanism is combined with the tail car beam lap joint structure, so that a statically indeterminate structure can be eliminated, fatigue damage is reduced, the service life of equipment is prolonged, the automatic deviation correcting walking mechanism can be adapted to a track with larger error caused by sedimentation of a stock ground foundation and the like, and the laying cost of a track foundation is effectively reduced.
3. The modularized portal structure, the middle span can be independently combined and lapped, so that the modularized portal structure not only can adapt to the requirements of different matched equipment, but also can realize mechanized maintenance.
The multi-span portal mobile tail car is used for the projects of large-scale or ultra-large-scale stacking equipment required by ports, mines and the like at home and abroad, and has wide requirements in large mineral countries, mineral transit countries or domestic large ports such as Australia, brazil, malaysia, guinea, cao Feidian harbor and the like at home and abroad at present, and the implementation of the technology can bring good competitiveness to the export of companies in the related fields. It is expected that the product will bring hundreds of millions of contracts to the company each year.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A multi-span gate mobile tail car, comprising: the main beam mechanism, the trolley set mechanism, the door-type supporting leg mechanism and the connecting beam mechanism;
the girder mechanism comprises a plurality of girder segments, the trolley group mechanism comprises a plurality of trolley groups, the door-type supporting leg mechanism comprises a plurality of door-type supporting legs, and the connecting girder mechanism comprises a plurality of connecting girders;
the plurality of door-type supporting legs are regularly arranged on a horizontal working plane, connecting beams are arranged between the adjacent door-type supporting legs, a group of trolley sets is arranged at the bottom of each door-type supporting leg, and the trolley sets are symmetrically arranged at the left side and the right side of each door-type supporting leg;
the top parts of the first two door type supporting legs are provided with first girder sections, the top parts of the other door type supporting legs are sequentially provided with second girder sections, the first girder sections and the second girder sections are connected through spherical devices, and the adjacent second girder sections are connected through spherical devices;
the front-most door-type supporting leg is provided with a main machine part through a joint bearing.
2. The multi-span gate mobile tail as claimed in claim 1, wherein,
the door-type landing leg at the forefront end is hinged with the trolley group through a horizontal pin shaft, and a sliding bearing is arranged in the horizontal pin shaft;
the door-type supporting legs at the middle position are connected with the trolley group through a horizontal shaft and a vertical shaft, namely, a cross shaft is connected; the sliding bearing is arranged in the horizontal shaft, and the thrust bearing and the friction disc are arranged in the vertical shaft;
the door-type supporting leg at the rearmost position is rigidly connected with the trolley set through bolts.
3. The multi-span gate mobile tail as claimed in claim 1, wherein,
in the connection of the spherical device, the spherical device is arranged at the tail end of the main beam section at the front end, an adjusting pad is arranged in the spherical device, and the front end of the main beam section at the rear end is provided with a transverse stop and a longitudinal stop for limiting displacement;
a protective zipper for preventing accidental falling is arranged between the front end of the main beam section at the front end and the front end of the main beam section at the rear end.
4. A multi-span gate mobile tail as claimed in claim 1, 2 or 3 wherein,
the door type landing leg and the trolley group are provided with n, the main beam sections and the connecting beams are provided with n-1, and n is more than or equal to 4.
5. A multi-span gate mobile tail as claimed in claim 1, 2 or 3 wherein,
the main machine part is provided with a main machine connecting lug plate, the door-type landing leg at the forefront end is provided with a bridge beam I connecting lug plate, and the main machine connecting lug plate and the bridge beam I connecting lug plate are fixedly connected through a joint bearing.
6. A multi-span gate mobile tail as claimed in claim 1, 2 or 3 wherein,
and a traffic and maintenance vehicle channel is arranged below the door-type supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535792.7A CN109353776B (en) | 2018-12-14 | 2018-12-14 | Multi-span door type movable tail car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535792.7A CN109353776B (en) | 2018-12-14 | 2018-12-14 | Multi-span door type movable tail car |
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| Publication Number | Publication Date |
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| CN109353776A CN109353776A (en) | 2019-02-19 |
| CN109353776B true CN109353776B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811535792.7A Active CN109353776B (en) | 2018-12-14 | 2018-12-14 | Multi-span door type movable tail car |
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| CN209177470U (en) * | 2018-12-14 | 2019-07-30 | 大连华锐重工集团股份有限公司 | Multi-span gate-type moves trailer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1238607C (en) * | 2001-04-10 | 2006-01-25 | 阿尔卡蒂·阿列克谢耶维奇·科尔纳特斯基 | Method and installation for building highway and highway |
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|---|---|---|---|---|
| CN103303692A (en) * | 2013-06-28 | 2013-09-18 | 湖南长重机器股份有限公司 | Efficient automatic stocker with two-arm brackets for blending evenly |
| CN205023522U (en) * | 2015-09-16 | 2016-02-10 | 大连卓远重工有限公司 | Articulate formula trailer entirely |
| CN205312658U (en) * | 2016-01-04 | 2016-06-15 | 长春发电设备总厂 | Bucket -wheel stacker reclaimer double track alternaties trailer of turning back with through -put function |
| CN106348039A (en) * | 2016-11-03 | 2017-01-25 | 大连华锐重工焦炉车辆设备有限公司 | Mechanical pitching movable single tail trolley |
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| CN109353776A (en) | 2019-02-19 |
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